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27-11-2025 11:46

Thomas Læssøe

https://svampe.databasen.org/observations/10493918

17-09-2025 10:50

Heather Merrylees

Hi there!I am hoping for any advice on the identif

29-11-2025 08:40

Andreas Millinger Andreas Millinger

Hello,on a splintered part of a branch on the grou

28-11-2025 16:45

Nogueira Héctor

November 23, 2025 Requejo de Sanabria (León) SPAI

25-11-2025 14:24

Thomas Læssøe

https://svampe.databasen.org/observations/10490522

27-11-2025 15:41

Thomas Læssøe

Spores brownish, typically 4-celled; 26.8 x 2.4;

27-11-2025 12:01

Thomas Læssøe

https://svampe.databasen.org/observations/10496727

27-11-2025 11:31

Thomas Læssøe

Collectors notes: Immersed ascomata, erumpent thro

23-09-2025 13:31

Thomas Læssøe

https://svampe.databasen.org/observations/10534623

26-11-2025 18:13

Jason Karakehian Jason Karakehian

The entire run of Mycotaxon is now available throu

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Geopora
Malcolm Greaves, 07-10-2019 16:19
Malcolm  Greaves
Hello

Is anyone able to tell from these photos if this is G arenicola or some other species of Geopora. The part submerged cup was in damp soil. The spores were on average 24x13 with two large guttules. Paraphyses slightly swollen at the tip.

Thanks

Mal
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Josep Torres, 08-10-2019 22:39
Josep Torres
Re : Geopora
Hola Mal, creo que la Geopora arenicola debería presentar esporas de mayor tamaño, con un tamaño esporal parecido tengo un estudio que determiné que se trataba de Geopora cervina, en mi caso las esporas daban unas medidas de: 
(21.1) 22.6 - 25.2 (28.9) × (10.8) 11.7 - 12.9 (13.4) µm
Q = (1.8) 1.9 - 2.1 (2.2) ; N = 20
Me = 23.9 × 12.2 µm ; Qe = 2
Aunque de media las medidas parecen encajar, no me cuadra la morfología de las esporas de tu trabajo.
Te dejo una imagen de mi estudio de la supuesta Geopora cervina.
Saludos cordiales.

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Malcolm Greaves, 09-10-2019 01:13
Malcolm  Greaves
Re : Geopora
hola Josep

I will try and get more spores and get a better average.

The sizes do seem to vary between the different keys I have.

Mal
Malcolm Greaves, 09-10-2019 17:31
Malcolm  Greaves
Re : Geopora
Hola Josep

From a spore drop I ended up with 23.06-25.38 x 12.44-13.97 and an average 24.23 x 13.38. Q value 1.81. These figures don't fit with G cervina or G arenicola in Ascomiceti d'Italia. Could be either species in Spooners Geopora in the UK. Nordic Macromycetes has the width as 10.5-13 for G cervina and 10-13.5 for G arenicola.

Very close but unless there is a new study or key out there G arenicola does look the closest but only by a very small margin.

Thanks for your input.

Mal